949991447 has 2 divisors, whose sum is σ = 949991448. Its totient is φ = 949991446.

The previous prime is 949991423. The next prime is 949991477. The reversal of 949991447 is 744199949.

It is a weak prime.

It is an emirp because it is prime and its reverse (744199949) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 949991447 - 2¹² = 949987351 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 949991392 and 949991401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (949991477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 474995723 + 474995724.

It is an arithmetic number, because the mean of its divisors is an integer number (474995724).

Almost surely, 2^949991447 is an apocalyptic number.

949991447 is a deficient number, since it is larger than the sum of its proper divisors (1).

949991447 is an equidigital number, since it uses as much as digits as its factorization.

949991447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2939328, while the sum is 56.

The square root of 949991447 is about 30821.9312665511. The cubic root of 949991447 is about 983.0446223052.

The spelling of 949991447 in words is "nine hundred forty-nine million, nine hundred ninety-one thousand, four hundred forty-seven".